A fire destroyed this home at 278 Lester Road early Thursday morning in Lawrenceville. (Staff Photo: Tyler Estep)

LAWRENCEVILLE — Two unresponsive residents were rushed to the hospital Thursday morning while a fire destroyed their Lawrenceville home.

Gwinnett County firefighters responded to the home at 278 Lester Road — just off Lawrenceville Highway near Ronald Reagan Parkway — at about 4:30 a.m. Thursday after a passerby called 911. When crews arrived, they found the garage area of the single-story brick house "engulfed in flames" and entered the home, Capt. Tommy Rutledge said.

"Two people, an older man and woman, were found unresponsive by firefighters during a primary search and were removed from the burning home," Rutledge said.

A family member at the home later Thursday morning told the Daily Post her 83-year-old mother was one of the victims, as well as a 56-year-old man staying at the home. The family declined to identify them.

Both occupants were taken to Gwinnett Medical Center with "advanced life support measures," Rutledge said. Though, fire officials declined to provide further information on the patients' condition, the aforementioned family member said she believed they were going to be flown to Grady Burn Center in Atlanta.

The home and a vehicle inside the garage, where investigators believe the blaze started, were a total loss, Rutledge said.

"Exactly what may have sparked the fire is still unknown and is being investigated," Rutledge said.

Both victims were found in the home's living room.

The home was equipped with smoke alarms, however it is unknown yet whether they were working at the time," Rutledge said.